oedway



(No Model.)

J. M. & G. P. ORDWAY. NON CONDUCTING COVERING FOR CYLINDERS OFICE MACHINES.

PIPES, 8:0.

Patentgad yg. 3. 1886.

N. PETERS. Plxulwhlhcgnphar. Washington, 04 c.

.* UNITED STATES PATENT OFF C JOHN M. OED WAYAND GEORGE F. ORDWAY, OF BOSTON, MAss.

NON-CONDUCTING COVERING FOR CYLINDERS OF lCE-MACHl-NES, PIPES, dc.

SPECIFICATION forming part of Letters Patent No. 346,767, datedAugust 3, 1886.

Application filed February 18, 1886. Serial No. 192,334. (No model.)

To all whom it may concern:

Be it known that we, JOHN M. ORDWAY and GEORGE F. ORDWAY, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and Improved Non-Conducting Covering for Cylinders of Ice Ma'- chines, Pipes, and Similar Purposes; and we hereby declare the followingto bea full, clear, and exact description of the same, reference being had to the accompanying drawings, making part of this specification, inwhich Figure 1 is a perspective View of a semicylindrical section of non-conducting covering as it comes from the mold. Fig. 2 is a view of a semi-cylindrical section after packing the space with fossil-meal. Fig. 3 is a perspective View of a completed section. Fig. 4 is a section on line x x of Fig. 1. Figs. 5, 6, 7, 8 show sectional coverings having plane faces.

Our invention relates to the use of fossilmeal, pure or in combination, applied as a non-conductor, and has for its object to utilize as far as practical to the fullest extent the non-conductivity of fossil-meal.

To this end our invention consists in sectional covering-pieces made in molds or by any desired means and provided with cells or spaces to receive pure fossil-meal in layers, the sectional pieces to be molded of composition in which fossil-meal enters as an ingredient, or of any desired non-conducting composition capable of being molded or compressed into form.

Our invention also consists in a sectional non-conducting covering made of a novel combination of ingredients--fossil-meal, hair,and silicate of soda-as hereinafter fully described, and specifically set out in the claims.

I11 order that those skilled in the art may make and use our invention,"we will proceed to describe the manner in which we have carried it out.

\Ve take thirty six parts of fossil meal, three parts of hair, eleven parts of silicate of soda,diluted with ten parts of water,and thoroughly mix them in any convenient receptacle.- The mixture is then placed in molds to give the shape required and leave on the inner face of the molded section a depression, space, or cell to receive a layer of dry fossilmeal or any othergood non-conductor. After drying the sectional covering the space or cell is filled with the dry fossil-meal or other 'good non-conductor, and over it is placed a layer of the plastic compound of which the sectional cover is made. This layer adheres to the edges of the sectional cover around and over the non-conducting material in the cell and retains it in one structure with the coveringsection. The coveringsections thus made are to be in bricks, slabs, semi-cylinders, or of any other desired shape to meet the requirements of the uses intended.

In the said drawings, A is one of the nonconducting sections provided with the recess or cell a, to receive the fossil-meal or other non conducting material in fine division. (Seen at b, Fig. 2.) We have founda desirable dimension to be'to have the outside wall of the section to be about three-eighths of an inch thick, while the recess should be about three-quarters of an inch deep; but these proportions may be varied indefinitely without departing from the spirit our invention.

Thesev sectional coverings are designed to be made of standard dimensions and applied when insulation of temperature is required. If found desirable to make the exposed surface of the non-conducting sections waterproof, paper or cloth is made to adhere to the outer surface bythe application of water glass, silicate of soda, and when dry coats of water-proof paint can be applied to the snrface of the cloth or paper.

Having thus described our invention, what we claim as new, and. desire to secure by Letters Patent, is-

l. A sectional non-conducting covering for preventing the absorption or radiation of heat, consisting of fossil -1neal, hair, or its equivalent, and silicate of soda mixed with water molded into form and dried, substantially as set forth.

2. A sectional non conducting covering provided with recesses or cells a, in combination to retain the inserted non-conductor, as specified.

with a body of fossil-meal or other non-conductor inserted in said recesses a, substantially as described.

5 3. A molded sectional non-conducting covering consisting of a body, A, of mixed fossilmeal, hair, and silicate of soda having a cell or cells filled with fossil-meal or other nonconducting material, and a covering over said 10 cell or cells of the same material as the body JOHN M. ORDWAY. GEORGE F. ORDWAY. \Vitnesses for John M. Ordway:

Guns. B. STAFFORD, E. W. ORDWAY. Witnesses for George F. Ordway:

R. K. EVANS, FRANK W. PIOKELL, 

